The sixth letter, however, _was_ framed for the express purpose of testing the knowledge possessed by the intelligence which moved the pencil. The question, "Whom did you desire to have appointed administrator of your estate?" was asked because the sitter did not know the correct answer, and he knew that the medium could not know. The knowledge was possessed by the deceased person exclusively; and it is reasonable to suppose that if he was present, as the medium declared that he was, he would have given the desired information. The intelligence which wrote the replies was in full possession of the contents of all the letters, all the names addressed, and all the signatures, including those of the sixth letter. The answers to five of them were pertinent and intelligent, no specific knowledge being required. But when the sixth was reached, the spirit "could not communicate to-day." Why? Simply because the specific knowledge required to answer the question was not in the possession of any one present, and it could not, therefore, be obtained telepathically, as the knowledge of the contents of the other letters was obtained. This is the rock upon which all so-called spirit intercourse splits. Everything goes along swimmingly as long as the medium knows what to reply, or can obtain information by means of his telepathic or clairvoyant powers. But the moment he is confronted by a question requiring knowledge not obtainable in that way, he fails dismally. The circumstances of this séance have been detailed for the reason that it was a typical séance. It displayed all the essential characteristics of modern spirit intercourse, so-called. The medium displayed all the essential powers and attributes of good mediumship. The physical phenomena were produced to perfection, and under the most perfect test-conditions. The telepathic powers displayed were of the most extraordinary character, and the conditions under which they were produced were also such as to preclude the possibility of fraud or legerdemain. The results were also perfect in their character, showing, as they did, both the powers of the medium and his limitations. The dual character of the human mind was also clearly manifested, and the perfect amenability of the subjective entity to control by the power of suggestion was demonstrated.